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Effect of different co-solvents on biodiesel production from various low-cost feedstocks using Sr–Al double oxides

Ambat, Indu; Srivastava, Varsha; Iftekhar, Sidra; Haapaniemi, Esa; Sillanpää, Mika (2019-08-14)

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: 15.08.2021

Post-print / Final draft

Ambat, Indu
Srivastava, Varsha
Iftekhar, Sidra
Haapaniemi, Esa
Sillanpää, Mika
14.08.2019

Renewable Energy

146

2158-2169

Elsevier

School of Engineering Science

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© 2019 Elsevier Ltd.
https://doi.org/10.1016/j.renene.2019.08.061
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Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe2019082725794

Tiivistelmä

The main objective of the present paper comprises the investigation of biodiesel production from low-cost feedstock such as lard oil and waste cooking oil (WCO) using Sr-Al double oxides. Nanocatalyst was characterised FTIR, XRD, SEM, TEM, BET and XPS. The Sr:Al with 3:1 molar ratio showed the best catalytic activity in the conversion of both oils to fatty acid methyl ester. The effect of acetone and tetrahydrofuran (THF) as a co-solvent for transesterification were compared and the best result was obtained with 5 % THF. The mutual effect of the nanocatalyst and co-solvent on biodiesel production was investigated. The characterisation of biodiesel synthesised from lard oil and WCO was performed with GC-MS, 1H and 13C NMR. Moreover, the optimum reaction parameters for transesterification reaction was analysed and the yield was determined by 1H NMR. The maximum yield of 99.7% and 99.4% of lard oil methyl ester and WCO biodiesel were observed with a 0.9 wt% catalyst amount, 1:5.5 oil to methanol ratio in a reaction time of 45 minutes at 50°C and 60°C, respectively. The properties of biodiesel from lard oil and WCO were determined by the EN 14214 method. The regeneration, characterization and reusability of regenerated catalyst was observed.

Lähdeviite

Ambat Indu, Srivastava Varsha, Iftekhar Sidra, Haapaniemi Esa, Sillanpää Mika. (2019). Effect of different co-solvents on biodiesel production from various low-cost feedstocks using Sr–Al double oxides. Renewable Energy, Vol. 146, p. 2158-2169. DOI: 10.1016/j.renene.2019.08.061

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